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<?php
declare(strict_types=1);
namespace Yiisoft\Arrays\Modifier;
/**
* Inserts given value before specified key while performing {@see ArrayHelper::merge()}.
*
* The modifier should be specified as
* ```php
* 'some-key' => new InsertValueBeforeKey('some-value', 'a-key-to-insert-before'),
* ```
* $a = [
* 'name' => 'Yii',
* 'version' => '1.0',
* ];
* $b = [
* 'version' => '1.1',
* 'options' => [],
* 'vendor' => new InsertValueBeforeKey('Yiisoft', 'name'),
* $result = ArrayHelper::merge($a, $b);
* Will result in:
* [
* 'vendor' => 'Yiisoft',
*/
final class InsertValueBeforeKey implements ModifierInterface
{
/** @var mixed value of any type */
private $value;
private string $key;
public function __construct($value, string $key)
$this->value = $value;
$this->key = $key;
}
public function apply(array $data, $key): array
$res = [];
foreach ($data as $k => $v) {
if ($k === $this->key) {
$res[$key] = $this->value;
$res[$k] = $v;
return $res;
yiisoft /
arrays
